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WO2021226747A1 - Sélection de ressources en liaison latérale - Google Patents

Sélection de ressources en liaison latérale Download PDF

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Publication number
WO2021226747A1
WO2021226747A1 PCT/CN2020/089395 CN2020089395W WO2021226747A1 WO 2021226747 A1 WO2021226747 A1 WO 2021226747A1 CN 2020089395 W CN2020089395 W CN 2020089395W WO 2021226747 A1 WO2021226747 A1 WO 2021226747A1
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WIPO (PCT)
Prior art keywords
resource
resource pool
channel busy
target
pools
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Ceased
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PCT/CN2020/089395
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English (en)
Inventor
Dong Li
Yong Liu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Original Assignee
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Nokia Shanghai Bell Co Ltd, Nokia Solutions and Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co Ltd
Priority to PCT/CN2020/089395 priority Critical patent/WO2021226747A1/fr
Priority to CN202080100699.2A priority patent/CN115516900B/zh
Publication of WO2021226747A1 publication Critical patent/WO2021226747A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • Embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to devices, methods and computer readable storage media of the resource selection in sidelink.
  • LTE SL Long Term Evolution Sidelink
  • 5G NR SL 5 th Generation New Radio Sidelink
  • RRC Radio Resource Control
  • UEs In UE autonomous resource selection, UEs continuously make channel sensing in the sensing window and then make the resource selection in the associated selection window based on the channel sensing results. In 5G SL, it was further enhanced to support the channel re-evaluation before the potential sidelink transmission over the initially selected resources to mitigate the resource selection collisions. This continuous channel sensing procedure implies relatively large power consumption.
  • example embodiments of the present disclosure provide a solution of the resource selection in sidelink.
  • a first device comprising at least one processor; and at least one memory including computer program codes; the at least one memory and the computer program codes are configured to, with the at least one processor, cause the first device at least to obtain a set of resource pools configured for data transmissions over sidelink, a resource pool in the set of resource pools being configured with a resource priority; select a target resource pool for the data transmissions from the set of resource pools based on information about channel busy ratios (CBRs) of the set of resource pools, the resource priorities of the set of resource pools and a data priority of the data transmissions; and determine a set of resources for the data transmissions from the target resource pool.
  • CBRs channel busy ratios
  • a method comprises obtaining a set of resource pools configured for data transmissions over sidelink, a resource pool in the set of resource pools being configured with a reference resource priority; selecting a target resource pool for the data transmissions from the set of resource pools based on information about channel busy ratios of the set of resource pools, the resource priorities of the set of resource pools and a data priority of the data transmissions and determining a set of resources for the data transmissions from the target resource pool.
  • priority-based resource configuration and CBR/priority based resource (pool) selection contribute to a balance between resource selection collision avoidance and power consumption reduction.
  • an apparatus comprises means for obtaining a set of resource pools configured for data transmissions over sidelink, a resource pool in the set of resource pools being configured with a resource priority; means for selecting a target resource pool for the data transmissions from the set of resource pools based on information about channel busy ratios of the set of resource pools and a data priority of the data transmissions; and means for determining a set of resources for the data transmissions from the target resource pool.
  • a computer readable medium having a computer program stored thereon which, when executed by at least one processor of a device, causes the device to carry out the method according to the second aspect.
  • FIG. 1 illustrates an example environment in which example embodiments of the present disclosure can be implemented
  • FIG. 2 shows a flowchart of an example method of the resource selection in sidelink according to some example embodiments of the present disclosure
  • FIG. 3 shows a flowchart of an example method of The resource selection in sidelink according to some example embodiments of the present disclosure
  • FIG. 4 shows a flowchart of an example method of The resource selection in sidelink according to some example embodiments of the present disclosure
  • FIG. 5 shows a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure.
  • Fig. 6 shows a block diagram of an example computer readable medium in accordance with some embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an example embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • circuitry may refer to one or more or all of the following:
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “communication network” refers to a network following any suitable communication standards, such as fifth generation (5G) systems, Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on.
  • 5G fifth generation
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the future fifth generation (5G) new radio (NR) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • suitable generation communication protocols including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the future fifth generation (5G) new radio (NR) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the
  • the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom.
  • the network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR Next Generation NodeB (gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
  • BS base station
  • AP access point
  • NodeB or NB node B
  • eNodeB or eNB evolved NodeB
  • gNB Next Generation NodeB
  • RRU Remote Radio Unit
  • RH radio header
  • RRH remote radio head
  • relay a
  • An RAN split architecture comprises a gNB-CU (Centralized unit, hosting RRC, SDAP and PDCP) controlling a plurality of gNB-DUs (Distributed unit, hosting RLC, MAC and PHY) .
  • a relay node may correspond to DU part of the IAB node.
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) .
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (IoT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/
  • the terminal device may also correspond to Mobile Termination (MT) part of the integrated access and backhaul (IAB) node (a.k.a. a relay node) .
  • MT Mobile Termination
  • IAB integrated access and backhaul
  • the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
  • a user equipment apparatus such as a cell phone or tablet computer or laptop computer or desktop computer or mobile IoT device or fixed IoT device
  • This user equipment apparatus can, for example, be furnished with corresponding capabilities as described in connection with the fixed and/or the wireless network node (s) , as appropriate.
  • the user equipment apparatus may be the user equipment and/or or a control device, such as a chipset or processor, configured to control the user equipment when installed therein. Examples of such functionalities include the bootstrapping server function and/or the home subscriber server, which may be implemented in the user equipment apparatus by providing the user equipment apparatus with software configured to cause the user equipment apparatus to perform from the point of view of these functions/nodes.
  • FIG. 1 shows an example communication network 100 in which embodiments of the present disclosure can be implemented.
  • the network 100 includes terminal devices 110-1 and 110-2.
  • the terminal device 110-1 may be referred to as a first device 110-1 and the terminal device 110-2 may be referred to a second device 110-2.
  • the terminal devices 110-1 and 110-2 may communicate with each other. It is to be understood that the number of terminal devices is only for the purpose of illustration without suggesting any limitations.
  • the network 100 may include any suitable number of terminal devices adapted for implementing embodiments of the present disclosure.
  • the first device 110-1 may also be considered as a second device and correspondingly the second device 110-2 may also be considered as a first device.
  • the roles of the first and the second devices may be exchanged.
  • V2X communication can be divided into four types, including Vehicle-to-Vehicle (V2V) , Vehicle-to-Pedestrian (V2P) , Vehicle-to-Infrastructure (V2I) , Vehicle-to-Network (V2N) .
  • Communication between terminal devices can be performed via sidelinks.
  • information may be transmitted from a Transmit (TX) terminal device to one or more Receive (RX) terminal devices in a broadcast, or groupcast, or unicast manner.
  • TX Transmit
  • RX Receive
  • the network 100 may be a Code Division Multiple Access (CDMA) network, a Time Division Multiple Address (TDMA) network, a Frequency Division Multiple Access (FDMA) network, an Orthogonal Frequency-Division Multiple Access (OFDMA) network, a Single Carrier-Frequency Division Multiple Access (SC-FDMA) network or any others.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Address
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency-Division Multiple Access
  • SC-FDMA Single Carrier-Frequency Division Multiple Access
  • Communications discussed in the network 100 may conform to any suitable standards including, but not limited to, New Radio Access (NR) , Long Term Evolution (LTE) , LTE-Evolution, LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , Code Division Multiple Access (CDMA) , cdma2000, and Global System for Mobile Communications (GSM) and the like.
  • NR New Radio Access
  • LTE Long Term Evolution
  • LTE-A LTE-Evolution
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • GSM Global System for Mobile Communications
  • the communications may be performed according to any generation communication protocols either currently known or to be developed in the future. Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols.
  • the techniques described herein may be used for
  • LTE SL Long Term Evolution Sidelink
  • 5G NR SL 5 th Generation New Radio Sidelink
  • RRC Radio Resource Control
  • UEs In UE autonomous resource selection, UEs continuously make channel sensing in the sensing window and then make the resource selection in the associated selection window based on the channel sensing results. In 5G SL, it was further enhanced to support the channel re-evaluation before the potential sidelink transmission over the initially selected resources to mitigate the resource selection collisions.
  • This continuous channel sensing procedure implies relatively large power consumption. The relatively large power consumption is not a problem for the vehicle UEs, however, it is a serious concern for the battery powered UEs e.g. pedestrian UEs, public safety UEs or other hand held UEs involved in the sidelink transmissions.
  • the pedestrian UEs can be (pre) configured to make the resource selection based on random selection and/or partial sensing operations over the particularly (pre) configured P2X resource pool.
  • the pedestrian UEs select resources from a subset of the resource selection window based on the sensing over a subset of sensing window.
  • Some sidelink V2X services have stringent requirements for latency (e.g. 3ms) and reliability (e.g. 99.99%or higher) which are identified by ProSe Per-Packet Priority (PPPP) and ProSe Per-Packet Reliability (PPPR) respectively in LTE SL Rel-15.
  • PPPP ProSe Per-Packet Priority
  • PPPR ProSe Per-Packet Reliability
  • NR SL Rel-16 more advanced QoS control mechanisms and parameters were introduced to support advanced sidelink services (e.g. sidelink range, data rate) and a parameter of priority is defined in physical layer (which is mapped from upper layer QoS parameters) to facilitate the physical layer operations e.g. channel sensing and resource selection.
  • the various SL V2X services with different QoS parameters share the (pre) configured resource pool (s) and the distinct treatments for different SL service QoS are reflected by the priority-specific threshold parameters which are involved in the channel sensing and resource selection.
  • embodiments of the present disclosure propose a scheme of resource selection in the sidelink.
  • the resource pools configured for the data transmission in the sidelink may be classed with different resource priorities.
  • the UE may perform Channel Busy Ratio (CBR) measurement periodically for the resource pools and select a target resource pool based on the resource priority and the priority of the data to be transmitted.
  • CBR Channel Busy Ratio
  • priority-based resource configuration and CBR/priority based resource (pool) selection contribute to a balance between resource selection collision avoidance and power consumption reduction.
  • FIG. 2 shows a flowchart of an example method 200 of enhanced resource selection according to some example embodiments of the present disclosure.
  • the method 200 can be implemented at the terminal device 110-1 or the terminal device 110-2 (hereinafter referred to as the terminal device 110) as shown in FIG. 1.
  • the terminal device 110 the terminal device 110
  • the method 200 will be described with reference to FIG. 1.
  • a plurality of resource pools can be (pre) configured for data transmission in sidelink.
  • Each of the plurality of resource pools may have its resource priority respectively.
  • the UE 110 may obtain a set of resource pools configured for data transmissions over sidelink. For example, the UE 110 may obtain the information about the plurality of resource pools via a higher layer signaling. Each resource pool in the set of resource pools being configured with a resource priority.
  • the UE 110 may determine which one of the plurality of resource pools is to be selected for the data transmission when the UE prepares to transmit a data packet.
  • the UE 110 may select a target resource pool for the data transmission from the set of resource pools based on the data priority of the data transmission, the resource priorities of the set of resource pools and information about CBR of the set of resource pools.
  • the UE 110 may determine a set of resources for the data transmission from the target resource pool. For example, the UE 110 may select the set of resources for the data transmission from the target resource pool randomly. As another option, the UE 110 may select the set of resources for the data transmission from the target resource pool based on a partial sensing procedure.
  • the procedure for determining the target resource pool from a set of resource pool configured for the data transmission and the set of resources from the target resource pool can be further described in detail.
  • FIG. 3 shows a flowchart of an example method 300 of resource pool selection according to some example embodiments of the present disclosure.
  • the method 300 can be implemented at the terminal device 110-1 or the terminal device 110-2 (hereinafter referred to as the terminal device 110) as shown in FIG. 1.
  • the terminal device 110 the terminal device 110
  • the method 300 will be described with reference to FIG. 1.
  • the UE 110 may first determine the resource priorities of the set of resource pools (pre) configured for the data transmission. As shown in FIG. 3, at 310, the UE 110 may determine a first resource pool having a first resource priority equal to or lower than the data priority and closest to the data priority among the resource priorities of the set of resource pools. The first resource pool may be considered as a default resource pool. Then comparing the first resource priority with the the resource priorities of the set of resource pools, at 320, the UE 110 may determine whether there is at least one resource pool having a resource priority in the set of resource pools and the resource priority is higher than the first resource priority.
  • the resource priorities of the set of resource pools and the data priority can be classed under a common standard or there is a direct or indirect correspondence between the resource priorities and the data priority, so that the resource priorities and data priority can be comparable with each other.
  • the UE 110 may determine, at 330, whether CBRs of the set of resource pools are available.
  • the UE 110 may perform the measurements of CBR for each of the set of resource pools periodically, the UE 110 may also not obtain the CBRs of the set of resource pools in some cases. If the UE 110 determines the CBRs of the set of resource pools are unavailable, the UE 110, at 340, may select the default resource pool, i.e. the first resource pool as the target resource pool.
  • the UE 110 may determine whether there is a second resource pool having a second CBR in the set of the resource pools and the second CBR is lower than a first CBR of the first resource pool, which has the first resource priority closest to the data priority. If the UE 110 determines there is the second resource pool having a second CBR lower than the first CBR, at 360, the UE 110 may select the second resource pool as the target resource pool.
  • the UE 110 may, at 340, select the default resource pool, i.e. the first resource pool as the target resource pool.
  • the UE 110 may determine the CBRs for the at least one resource pool.
  • the UE 110 may further obtain some predefined threshold CBRs.
  • the UE 110 may obtain a first threshold of CBR, which may be associated with the first resource priority of the first resource pool and/or the resource priority of the at least one resource pool.
  • the UE 110 may also obtain a threshold of CBR difference from a CBR of the first resource pool, i.e. the default resource pool.
  • the threshold of CBR difference may indicate a minimal difference between the first CBR and a target CBR of a target resource pool to be selected.
  • the UE 110 may, at 370, determine the target resource pool based on the CBRs for the at least one resource pool, and at least one of the threshold of CBR difference and the first threshold of CBR.
  • the UE 110 may select the target resource pool from the subset of resource pools.
  • the UE 110 may select the target resource pool from the further subset of resource pools.
  • the UE 110 may select any one of the subset of resource pools or the further subset of resource pools, as the target resource pool randomly.
  • the UE 110 may also select a resource pool having the lowest resource priority or having a lowest CBR in the subset of resource pools or the further subset of resource pools, as the target resource pool.
  • the UE 110 may determine the target resource pool from the set of the resource pools other than the at least one resource pool.
  • the UE may select the resource pool based on the resource priority of the resource pools and the CBRs of the resource pools, so that the resource allocation may be optimized and the balance between resource selection collision avoidance and power consumption reduction can be achieved.
  • FIG. 4 shows a flowchart of an example method 400 of the resource selection in sidelink according to some example embodiments of the present disclosure.
  • the method 400 can be implemented at the the terminal device 110-1 or the terminal device 110-2 (hereinafter referred to as the terminal device 110) as shown in FIG. 1.
  • the terminal device 110 the terminal device 110
  • the method 400 will be described with reference to FIG. 1.
  • the UE 110 may select the resources for the data transmission from the target resource pool based on the CBR of the target resource pool.
  • the UE 110 may determine the CBR of the target resource pool. Then, at 420, the UE 110 may determine whether the CBR of the target resource pool is lower than a second threshold CBR.
  • the UE 110 may select the resources for the data transmission from the target resource pool randomly.
  • the UE 110 may select the resources for the data transmission from the target resource pool based on the partial sensing procedure. For example, the UE 110 may determine available resources from the target resource pool based on sensing and the set of resources for the data transmission may be selected from the available resources.
  • the UE 110 may support only one of the resource selection methods. For example, the UE 110 may obtain an indication of the resource selection to be used via a higher layer signalling.
  • priority-based resource configuration and CBR/priority based resource (pool) selection contribute to a balance between resource selection collision avoidance and power consumption reduction.
  • the UE 110 has a data packet to be transmitted in sidelink with a data priority of level 1 and there are four resource pools (pre) configured with the resource priorities of level 0, level 2, level 4 and level 6, wherein the level 0 is the highest priority level.
  • CBRs ⁇ 0.25, 0.33, 0.40, 0.66 ⁇ for the four resource pools respectively.
  • the UE 110 determines the default resource pool (called as the first resource pool) which has resource priority that is equal to or lower than the data packet priority and closest to the data packet priority.
  • the resource pool with resource priority of level 2 is determined as the first resource pool with the first resource priority of level 2.
  • the UE 110 may select the determined the first resource pool with the first resource priority of level 2 as the target resource pool.
  • the UE 110 may select a resource pool other than the default resource pool as target resource pool.
  • the resource pools with resource priorities of level 4 and 6 have CBRs larger than that of the default resource pool. In this case, the UE 110 may select the first resource pool (i.e. the default resource pool) as the target resource pool.
  • the UE 110 has a data packet to be transmitted in sidelink with a data priority of level 3 and there are four resource pools (pre) configured with the resource priorities of level 0, level 1, level 2 and level 3, wherein the level 0 is the highest priority level.
  • CBRs ⁇ 0.08, 0.12, 0.14, 0.40 ⁇ for the four resource pools respectively.
  • the UE 110 determines the default resource pool (called as the first resource pool) which has resource priority that is equal to or lower than the data packet priority and closest to the data packet priority.
  • the resource pool with resource priority of level 3 is determined as the first resource pool with the first resource priority of level 3.
  • the UE 110 may select the determined the first resource pool with the first resource priority of level 3 as the target resource pool.
  • the UE 110 may select a resource pool other than the default resource pool as target resource pool.
  • the resource pools i.e. the resource pools with resource priorities of level 0, 1 and 2 having a higher priority than the first resource priority of the first resource pool.
  • the resource pool with resource priority of level 2 may satisfy the condition. In this case, the resource pool with resource priority of level 2 may be selected as the target resource.
  • the resource pool may be selected as the target resource pool.
  • CBR diff 0.30
  • an apparatus capable of performing the method 200 may comprise means for performing the respective steps of the method 200.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises means for means for obtaining a set of resource pools configured for data transmissions over sidelink, a resource pool in the set of resource pools being configured with a resource priority; means for selecting a target resource pool for the data transmissions from the set of resource pools based on information about channel busy ratios of the set of resource pools and a data priority of the data transmissions; and means for determining a set of resources for the data transmissions from the target resource pool.
  • FIG. 5 is a simplified block diagram of a device 500 that is suitable for implementing embodiments of the present disclosure.
  • the device 500 may be provided to implement the communication device, for example the terminal device 110as shown in FIG. 1.
  • the device 500 includes one or more processors 510, one or more memories 540 coupled to the processor 510, and one or more transmitters and/or receivers (TX/RX) 540 coupled to the processor 510.
  • TX/RX transmitters and/or receivers
  • the TX/RX 540 is for bidirectional communications.
  • the TX/RX 540 has at least one antenna to facilitate communication.
  • the communication interface may represent any interface that is necessary for communication with other network elements.
  • the processor 510 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 500 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the memory 520 may include one or more non-volatile memories and one or more volatile memories.
  • the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 524, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and/or optical storage.
  • the volatile memories include, but are not limited to, a random access memory (RAM) 522 and other volatile memories that will not last in the power-down duration.
  • a computer program 530 includes computer executable instructions that are executed by the associated processor 510.
  • the program 530 may be stored in the ROM 520.
  • the processor 510 may perform any suitable actions and processing by loading the program 530 into the RAM 520.
  • the embodiments of the present disclosure may be implemented by means of the program 530 so that the device 500 may perform any process of the disclosure as discussed with reference to FIGs. 2-4.
  • the embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 530 may be tangibly contained in a computer readable medium which may be included in the device 500 (such as in the memory 520) or other storage devices that are accessible by the device 500.
  • the device 500 may load the program 530 from the computer readable medium to the RAM 522 for execution.
  • the computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • FIG. 6 shows an example of the computer readable medium 600 in form of CD or DVD.
  • the computer readable medium has the program 530 stored thereon.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, device, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the methods 300 and 400 as described above with reference to FIGs. 2-4.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing device, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program codes or related data may be carried by any suitable carrier to enable the device, device or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable medium, and the like.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon des modes de réalisation donnés à titre d'exemple, la présente divulgation se rapporte à des dispositifs, procédés, appareils et supports de stockage lisibles par ordinateur de sélection de ressources en liaison latérale. Le procédé consiste à obtenir un ensemble de groupes de ressources configurés pour des transmissions de données sur une liaison latérale, un groupe de ressources dans l'ensemble de groupes de ressources étant configuré avec une priorité de ressource ; à sélectionner un groupe de ressources cibles destiné aux transmissions de données à partir de l'ensemble de groupes de ressources sur la base d'informations concernant des rapports d'occupation de canal de l'ensemble de groupes de ressources, des priorités de ressources prédéterminées de l'ensemble de groupes de ressources et d'une priorité de données des transmissions de données et à déterminer un ensemble de ressources destinées aux transmissions de données à partir du groupe de ressources cible. De cette manière, la configuration de ressources basée sur la priorité et la sélection de (groupes de) ressources basée sur CBR/la priorité contribuent à un équilibre entre l'évitement de collision de sélection de ressources et la réduction de la consommation d'énergie.
PCT/CN2020/089395 2020-05-09 2020-05-09 Sélection de ressources en liaison latérale Ceased WO2021226747A1 (fr)

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CN202080100699.2A CN115516900B (zh) 2020-05-09 2020-05-09 侧行链路中的资源选择

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